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Voices From the Black Community: Hepatitis C Research Participation

29 juin 2020 mis à jour par: University of North Carolina, Chapel Hill

Voices From the Black Community: Beliefs and Attitudes on Participating in Research Studies for Chronic Hepatitis C

This is a one-time cross-sectional survey study of approximately 200 self-identified black or African-American patients who have had chronic hepatitis C viral infection (HCV) that will evaluate patients' willingness to participate (WTP) in health/medical research related to HCV and attitudinal factors that might be associated with WTP, such as benefits and barriers to research participation, mistrust of physicians/researchers, health literacy, and knowledge of health/research studies.

Aperçu de l'étude

Statut

Complété

Les conditions

Description détaillée

Chronic hepatitis C viral (HCV) infection is three times more prevalent in the African American/black (AA) population than in white patients in the U.S.; yet minorities are woefully under-represented in HCV research, particularly in Phase III drug registration trials. A recent systematic review of randomized controlled clinical trials (RCT) of HCV treatments with interferon-based treatments from 2000 to 2011 found that the proportion of African-American patients in RCTs ranged from 0% - 11%. Despite significant increases in efficacy and reductions in adverse events associated with the new direct acting antiviral (DAA) regimens, the proportion of black patients enrolled in Phase II-III DAA registration trials has not increased dramatically and generally ranges from 1%-18%. Because participation rates in medical research do not fully represent the overall U.S. population or prevalence rates among various subgroups, the Food and Drug Administration (FDA) has mandated pharmaceutical companies to improve demographic subgroups included in clinical trials, to identify barriers to subgroup enrollment in clinical trials, and to employ strategies to encourage greater participation.

Enrolling more diverse patients in medical research, especially racial minorities, is a ubiquitous dilemma that has received a fair amount of scientific attention in the last 10 years. This research has found an important role for the perceptions and attitudes that people have about participating in clinical research. Negative perceptions serve as barriers to enrollment in clinical research, while positive attitudes are facilitators of research participation. Additionally, knowledge gaps, patient-provider communication, health literacy, and mistrust of research and scientists are a few of the commonly reported barriers to participation among minority patients. To our knowledge, no study has been undertaken with black patients with HCV to understand their specific attitudes and perspectives related to participation in HCV-related health or medical research. This information is a prerequisite to developing effective approaches to increasing participation of the black community in HCV-related health or medical research.

Two hundred Black patients will be recruited. Patients who participated in The Patient-Reported Outcomes Project of HCV-TARGET ("PROP UP TARGET") study will be invited to participate. Patients will also be recruited from liver clinics at one medical center. Patients will respond to several survey questions over the phone or in person related to WTP and attitudinal factors related to clinical research.

Participant responses and characteristics will be summarized using graphical and tabular descriptive statistical methods such as sample means, percentiles, frequencies, proportions and standard deviations. All statistical estimates will be reported with confidence intervals.

Type d'étude

Observationnel

Inscription (Réel)

200

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • États-Unis
    • North Carolina
      • Chapel Hill, North Carolina, États-Unis, 27599
        • University of North Carolina at Chapel Hill

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

21 ans à 99 ans (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

Méthode d'échantillonnage

Échantillon non probabiliste

Population étudiée

Patients who self-identify as black or African-American and have been infected with chronic hepatitis C viral (HCV) infection. Patients will be recruited from the Patient-Reported Outcomes Project (PROP UP) observational study (11 U.S. liver centers) and from a tertiary care liver HCV clinic.

La description

Inclusion Criteria

  • Previous enrollment in the Patient-Reported Outcomes Project (PROP UP) or recruited from HCV Liver Clinics at the University of North Carolina.
  • Self-identified as African-American or Black during the PROP UP study or in-person
  • Provide written or verbal permission to be contacted about future research studies

Exclusion Criteria

  • Express unwillingness to be contacted about future studies
  • Withdrew from PROP UP post-enrollment (eg. death, patient withdrawal)
  • Unwilling or unable to provide verbal consent
  • Identifies during the phone survey or in-person that he/she is not African-American or Black

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Overall Willingness to Participate (WTP) Mean Score
Délai: through study completion, an average of 1 day
Overall Willingness to Participate Scale (WTP): WTP in research studies was evaluated using 13 items to assess WTP in different types of health/medical research studies. Responses were based on a five-point Likert scale from 1 (not at all willing) to 5 (very willing), with 3 connoting "unsure/neutral." The overall WTP score will be calculated for each participant by taking the mean of the 13 items. Higher scores indicate higher WTP.
through study completion, an average of 1 day

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Perceived Benefits/Advantages of Participating in Health/Medical Research Mean Score
Délai: through study completion, an average of 1 day
Perceived Benefits Scale: Patients respond to 16 items regarding perceived benefits or advantages of research participation. Each item is rated on a 5 point likert scale: 1=strongly disagree, 2=disagree, 3=unsure, 4=agree, 5=strongly agree. The average of all items will be used to create the total mean benefit score. Higher scores indicate higher Perceived Benefits.
through study completion, an average of 1 day
Perceived Barriers/Disadvantages of Participating in Health/Medical Research Mean Score
Délai: through study completion, an average of 1 day
Perceived Barriers Scale: Patients respond to 12 items regarding barriers or disadvantages of research participation. Each item is rated on a 5 point likert scale: 1=strongly disagree, 2=disagree, 3=unsure, 4=agree, 5=strongly agree. The average of all items will be used to create the total mean barrier score. Higher scores indicate higher Perceived Barriers.
through study completion, an average of 1 day
Perceived Trust in Doctors Mean Score
Délai: through study completion, an average of 1 day
Trust in Doctors Scale: Patients respond to 12 items regarding their trust or mistrust in their medical providers. Each item is rated on a 5 point likert scale: 1=strongly disagree, 2=disagree, 3=unsure, 4=agree, 5=strongly agree. Negative items were reverse scored. The average of all items will be used to create the total mean trust score. Higher scores indicate higher Perceived Trust.
through study completion, an average of 1 day
Perceived Health Literacy Mean Score
Délai: through study completion, an average of 1 day
Perceived Health Literacy Scale: Three items assessed the health literacy of participants with a five-point response scale: 1 (Never), 2 (Rarely), 3 (Sometimes), 4 (Often), 5 (Always). Participants were asked (a) how frequently they asked others to help them read medical materials, (b) if they felt uncomfortable filling out medical forms, and (c) if they did not understand their medical condition due to difficulty reading medical materials. The average of all items will be used to create the total mean health literacy score. Lower scores indicate higher Perceived Health Literacy.
through study completion, an average of 1 day
Subjective Knowledge of Health/Medical Research Mean Score
Délai: through study completion, an average of 1 day
Subjective Knowledge Scale: Participants were asked how well they felt they understood what health/medical research involved. This was assessed on a five-point response scale: 1 (Not at all), 2 (Not too well), 3 (Somewhat well), 4 (Pretty well), 5 (Very well). The average of all items will be used to create the total mean subjective knowledge score. Higher scores indicate higher subjective knowledge.
through study completion, an average of 1 day
Objective Knowledge of Health/Medical Research Mean Score
Délai: through study completion, an average of 1 day
Objective Knowledge Scale: Knowledge of clinical trials was measured with 10 true/false questions about aspects of clinical trials. The proportion of correct responses per patient will be recorded. Higher proportion indicates higher objective knowledge.
through study completion, an average of 1 day

Autres mesures de résultats

Mesure des résultats
Description de la mesure
Délai
Proportion of Participant Recommendations for Strategies
Délai: through study completion, an average of 1 day
Open-ended qualitative question to solicit participants' recommendations for strategies to enhance racial diversity in HCV-related research studies. Responses will be categorized into different recommendation strategies and proportion of patients who listed a strategy in that category will be reported.
through study completion, an average of 1 day

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

University of North Carolina, Chapel Hill

Collaborateurs

Merck Sharp & Dohme LLC

Les enquêteurs

  • Chercheur principal: Donna M Evon, PhD, University of North Carolina, Chapel Hill

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

21 février 2019

Achèvement primaire (Réel)

15 mai 2020

Achèvement de l'étude (Réel)

19 juin 2020

Dates d'inscription aux études

Première soumission

11 décembre 2019

Première soumission répondant aux critères de contrôle qualité

16 décembre 2019

Première publication (Réel)

17 décembre 2019

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

1 juillet 2020

Dernière mise à jour soumise répondant aux critères de contrôle qualité

29 juin 2020

Dernière vérification

1 juin 2020

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • 18-0662

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Description du régime IPD

There is no plan at this time to make individual participant data available to other researchers.

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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